Automated submodule update: FBGEMM (pytorch#72769)

Summary:
This is an automated pull request to update the first-party submodule for [pytorch/FBGEMM](https://github.com/pytorch/FBGEMM).

New submodule commit: pytorch/FBGEMM@1ddff63

Pull Request resolved: pytorch#72769

Test Plan: Ensure that CI jobs succeed on GitHub before landing.

Reviewed By: jasonjk-park

Differential Revision: D34197722

fbshipit-source-id: 4d633b2a5b1538a557f01c99a4cbec927f7dc5e7
(cherry picked from commit 1b23fd0)